This is a fix for clean connection crash as:

koichi-szk · koichi-szk · commit d164f5668ae1 · 2014-09-16T17:12:06.000+09:00
CLEAN CONNECTION TO ALL FORCE FOR dbname;

Patch was provided by Wang Diancheng.
diff --git a/src/backend/pgxc/pool/poolcomm.c b/src/backend/pgxc/pool/poolcomm.c
@@ -778,7 +778,7 @@ pool_recvpids(PoolPort *port, int **pids)
 	{
 		int n;
 		memcpy(&n, buf + 5 + i * sizeof(int), sizeof(int));
-		*pids[i] = ntohl(n);
+		(*pids)[i] = ntohl(n);
 	}
 	return n32;
 

Original file line number	Diff line number	Diff line change
`@@ -778,7 +778,7 @@ pool_recvpids(PoolPort port, int *pids)`
`778`	`778`	`{`
`779`	`779`	`int n;`
`780`	`780`	`memcpy(&n, buf + 5 + i * sizeof(int), sizeof(int));`
`781`		`- *pids[i] = ntohl(n);`
	`781`	`+ (*pids)[i] = ntohl(n);`
`782`	`782`	`}`
`783`	`783`	`return n32;`
`784`	`784`